The "asia" file has three Indonesian time zones with 7-, 8-, and 9-hour differences from UCT. Jakarta is in the westernmost of the three, 7 hours different from UCT. The challenge here is that abbreviations of English-language names are used consistently for time zones around the globe. For Indonesia we have abbreviations WIT (Western Indonesian Time), CIT (Central Indonesian Time), and EIT (Eastern Indonesian Time). Improvidently, one of these English-language abbreviations (WIT) is also the native-language abbreviation of a different time zone. There's been discussion on the mailing list in the past about abbreviations; past consensus was that producing native-language abbreviations was an internationalization matter rather than a time zone matter. A case could be made for translating the native time zone names (Waktu Indonesia Barat, Waktu Indonesia Tengah, and Waktu Indonesia Timur) into English and using abbreviations based on the translated names. Relevant lines from the "asia" file are excerpted below. The good news: the translation from UCT to wall-clock time for Jakarta should be correct. --ado Zone Asia/Jakarta 7:07:12 - LMT 1867 Aug 10 ... 7:00 - WIT Zone Asia/Pontianak 7:17:20 - LMT 1908 May ... 7:00 - WIT Zone Asia/Makassar 7:57:36 - LMT 1920 ... 8:00 - CIT Zone Asia/Jayapura 9:22:48 - LMT 1932 Nov ... 9:00 - EIT -----Original Message----- From: Martin Pitt [mailto:martin.pitt@ubuntu.com] Sent: Monday, April 27, 2009 7:19 To: tz@lecserver.nci.nih.gov Cc: 365215@bugs.launchpad.net; adityaw Subject: Jakarta is Indonesia West Time Not Central Time Hello tzdata developers, https://launchpad.net/bugs/365215 reported that tzdata currently puts Jakarta into WIT (Indonesia Central Time), but it actually belongs into WIB (Indonesia West Time). It seems that http://www.timeanddate.com/worldclock/timezone.html?n=108 also gets this wrong (perhaps it's using tzdata?) The official website is currently down, however this url still accessible from google cache: http://209.85.173.132/search?q=cache:JBpW5TryxxAJ:www.bmg.go.id/dataDeta il.bmg%3FJenis%3DTeks%26IDS%3D7452470612766189439%26IDD%3D50150310207799 33765+waktu+indonesia+bagian+barat+site:*.go.id&cd=5&hl=en&ct=clnk&gl=id &client=firefox-a but the real url is: http://www.bmg.go.id/dataDetail.bmg?Jenis=Teks&IDS=7452470612766189439&I DD=5015031020779933765 The document states that GMT +7 (jakarta time) is Waktu Indonesia Barat (WIB), GMT +8 is Waktu Indonesia Tengah (WITA), and GMT +9 is Waktu Indonesia Timur (WIT). Thank you! Martin -- Martin Pitt | http://www.piware.de Ubuntu Developer (www.ubuntu.com) | Debian Developer (www.debian.org)